<template>
  <div class="p-2">
    <transition :enter-active-class="animate.searchAnimate.enter"
                :leave-active-class="animate.searchAnimate.leave">
      <div v-show="showSearch" class="search">
        <el-form ref="queryFormRef" :model="queryParams" :inline="true">
          <el-form-item label="分类名称" prop="categoryName">
            <el-input v-model="queryParams.categoryName" placeholder="请输入分类名称" clearable
                      @keyup.enter="handleQuery"/>
          </el-form-item>
          <el-form-item label="分类编码" prop="categoryCode">
            <el-input v-model="queryParams.categoryCode" placeholder="请输入分类编码" clearable
                      @keyup.enter="handleQuery"/>
          </el-form-item>
          <el-form-item>
            <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
            <el-button icon="Refresh" @click="resetQuery">重置</el-button>
          </el-form-item>
        </el-form>
      </div>
    </transition>

    <el-card shadow="never">
      <template #header>
        <el-row :gutter="10" class="mb8">
          <el-col :span="1.5">
            <el-button v-hasPermi="['workflow:category:add']" type="primary" plain icon="Plus" @click="handleAdd()">
              新增
            </el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button type="info" plain icon="Sort" @click="handleToggleExpandAll">展开/折叠</el-button>
          </el-col>
          <right-toolbar v-model:showSearch="showSearch" @query-table="getList"></right-toolbar>
        </el-row>
      </template>
      <el-table
        ref="categoryTableRef"
        v-loading="loading"
        :data="categoryList"
        row-key="id"
        :default-expand-all="isExpandAll"
        :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
      >
        <el-table-column label="分类名称" prop="categoryName"/>
        <el-table-column label="分类编码" align="center" prop="categoryCode"/>
        <el-table-column label="排序" align="center" prop="sortNum"/>
        <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
          <template #default="scope">
            <el-tooltip content="修改" placement="top">
              <el-button v-hasPermi="['workflow:category:edit']" link type="primary" icon="Edit"
                         @click="handleUpdate(scope.row)"/>
            </el-tooltip>
            <el-tooltip content="新增" placement="top">
              <el-button v-hasPermi="['workflow:category:add']" link type="primary" icon="Plus"
                         @click="handleAdd(scope.row)"/>
            </el-tooltip>
            <el-tooltip content="删除" placement="top">
              <el-button v-hasPermi="['workflow:category:remove']" link type="primary" icon="Delete"
                         @click="handleDelete(scope.row)"/>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <!-- 添加或修改流程分类对话框 -->
    <el-dialog v-model="dialog.visible" :title="dialog.title" width="500px" append-to-body>
      <el-form ref="categoryFormRef" v-loading="loading" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="父级分类" prop="parentId">
          <el-tree-select
            v-model="form.parentId"
            :data="categoryOptions"
            :props="{ value: 'id', label: 'categoryName', children: 'children' }"
            value-key="id"
            placeholder="请选择父级id"
            check-strictly
          />
        </el-form-item>
        <el-form-item label="分类名称" prop="categoryName">
          <el-input v-model="form.categoryName" placeholder="请输入分类名称"/>
        </el-form-item>
        <el-form-item label="分类编码" prop="categoryCode">
          <el-input v-model="form.categoryCode" placeholder="请输入分类编码"/>
        </el-form-item>
        <el-form-item label="排序" prop="sortNum">
          <el-input-number v-model="form.sortNum" placeholder="请输入排序" controls-position="right" :min="0"/>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button :loading="buttonLoading" type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script lang="js">
import {listCategory, getCategory, delCategory, addCategory, updateCategory} from '@/api/workflow/category';

export default {
  name: "Category",
  data() {
    return {
      categoryList: [],
      categoryOptions: [],
      buttonLoading: false,
      showSearch: true,
      isExpandAll: true,
      loading: false,
      dialog: {
        visible: false,
        title: ''
      },
      initFormData: {
        id: undefined,
        categoryName: undefined,
        categoryCode: undefined,
        parentId: undefined,
        sortNum: 0
      },
      form: {...this.initFormData},
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        categoryName: undefined,
        categoryCode: undefined
      },
      rules: {
        id: [{required: true, message: '主键不能为空', trigger: 'blur'}],
        categoryName: [{required: true, message: '分类名称不能为空', trigger: 'blur'}],
        categoryCode: [{required: true, message: '分类编码不能为空', trigger: 'blur'}],
        parentId: [{required: true, message: '父级id不能为空', trigger: 'blur'}]
      }
    }
  },
  mounted() {
    this.getList();
  },
  methods: {

    /** 查询流程分类列表 */
    async getList() {
      this.loading = true;
      const res = await listCategory(this.queryParams);
      const data = this.handleTree(res.data, 'id', 'parentId');
      if (data) {
        this.categoryList = data;
        this.loading = false;
      }
    },

    /** 查询流程分类下拉树结构 */
    async getTreeselect() {
      const res = await listCategory();
      this.categoryOptions = [];
      const data = {id: 0, categoryName: '顶级节点', children: []};
      data.children = this.handleTree(res.data, 'id', 'parentId');
      this.categoryOptions.push(data);
    },

// 取消按钮
    cancel() {
      this.reset();
      this.dialog.visible = false;
    },

// 表单重置
    reset() {
      this.form = {...this.initFormData};
      this.$refs.categoryFormRef.resetFields();
    },

    /** 搜索按钮操作 */
    handleQuery() {
      this.getList();
    },

    /** 重置按钮操作 */
    resetQuery() {
      this.$refs.queryFormRef.resetFields();
      this.handleQuery();
    },


    /** 新增按钮操作 */
    handleAdd(row) {
      this.dialog.visible = true;
      this.dialog.title = '添加流程分类';
      nextTick(() => {
        this.reset();
        this.getTreeselect();
        if (row != null && row.id) {
          this.form.parentId = row.id;
        } else {
          this.form.parentId = 0;
        }
      });
    },

    /** 展开/折叠操作 */
    handleToggleExpandAll() {
      this.isExpandAll = !this.isExpandAll;
      this.toggleExpandAll(this.categoryList, this.isExpandAll);
    },

    /** 展开/折叠操作 */
    toggleExpandAll(data, status) {
      data.forEach((item) => {
        this.$refs.categoryTableRef?.toggleRowExpansion(item, status);
        if (item.children && item.children.length > 0) this.toggleExpandAll(item.children, status);
      });
    },

    /** 修改按钮操作 */
    handleUpdate(row) {
      this.loading = true;
      this.dialog.visible = true;
      this.dialog.title = '修改流程分类';
      nextTick(async () => {
        this.reset();
        await getTreeselect();
        if (row != null) {
          this.form.parentId = row.id;
        }
        const res = await getCategory(row.id);
        this.loading = false;
        Object.assign(this.form, res.data);
      });
    },

    /** 提交按钮 */
    submitForm() {
      this.$refs.categoryFormRef.validate(async (valid) => {
        if (valid) {
          this.buttonLoading = true;
          if (this.form.id) {
            await updateCategory(this.form).finally(() => (this.buttonLoading = false));
          } else {
            await addCategory(this.form).finally(() => (this.buttonLoading = false));
          }
          this.$modal.msgSuccess('操作成功');
          this.dialog.visible = false;
          await this.getList();
        }
      });
    },

    /** 删除按钮操作 */
    async handleDelete(row) {
      await this.$modal.confirm('是否确认删除流程分类编号为"' + row.id + '"的数据项？');
      this.loading = true;
      await delCategory(row.id).finally(() => (this.loading = false));
      await this.getList();
      this.$modal.msgSuccess('删除成功');
    }
  }
}
</script>
